Fermion masses and gauge mediated supersymmetry breaking from a single U(1)

Journal Article · Wed Sep 01 04:00:00 EDT 1999 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.60.055003· OSTI ID:362734

Kaplan, D E ^[1]; Lepeintre, F ^[2]; Masiero, A ^[3]; Nelson, A E ^[1]; Riotto, A ^[4]

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1. Department of Physics 1560, University of Washington, Seattle, Washington 98195-1560 (United States)
2. Institute for Nuclear Theory 1550, University of Washington, Seattle, Washington 98195-1550 (United States)
3. SISSA, Via Beirut 2-4, I-34013 Trieste (Italy)
4. Theory Division, CERN, CH-1211 Geneva 23 (Switzerland)

We present a supersymmetric model of flavor. A single U(1) gauge group is responsible for both generating the flavor spectrum and communicating supersymmetry breaking to the visible sector. The problem of flavor changing neutral currents is overcome, in part using an {open_quotes}effective supersymmetry{close_quotes} spectrum among the squarks, with the first two generations very heavy. All masses are generated dynamically and the theory is completely renormalizable. The model contains a simple Froggatt-Nielsen sector and communicates supersymmetry breaking via gauge mediation without requiring a separate messenger sector. By forcing the theory to be consistent with SU(5) grand unification, the model predicts a large tan{beta} and a massless up quark. While respecting the experimental bounds on {ital CP} violation in the {ital K} system, the model leads to a large enhancement of {ital CP} violation in B-{bar B} mixing as well as in {ital B} decay amplitudes. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 362734
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 5 Vol. 60; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
B MESONS
CP INVARIANCE
FLAVOR MODEL
GAUGE INVARIANCE
KAONS
NEUTRAL CURRENTS
SU-5 GROUPS
SUPERSYMMETRY
SYMMETRY BREAKING
U-1 GROUPS
UNITARY SYMMETRY